caterpillar Series Pins and Retainers
| Part number | Size | Unit Weight | Model |
| 2011238 2011239 | |||
| 8E-6208(8E6209) | 11*60 | 0.05 | J200 |
| 6Y-3228(8E6259) | 14*69 | 0.09 | J220 |
| 8E-6258(8E6259) | 14*79 | 0.1 | J250 |
| 107-3308(8E6259) | 14*92 | 0.12 | J300 |
| 8E-6358(8E6359) | 19*105 | 0.25 | J350 |
| 7T-3408(8E8409) | 22*118 | 0.37 | J400 |
| 9W-8296(8E6359) | 19*135 | 0.3 | J450 |
| 8E-0468(8E8469) | 24*135 | 0.51 | J460 |
| 6Y-8558(8E8559) | 25*162 | 0.63 | J550 |
| 6I-6608(6I6609) | 30*195 | 1.1 | J600 |
| 4T-4708(4T4707) | 32*200 | 1.3 | J700 |
High-impact operations span mining, heavy forging, and large-scale infrastructure projects. Equipment in these environments is subjected to extreme loads, severe impacts, high-frequency wear, and harsh conditions such as dust, moisture, and corrosive agents. Locks and pins, as core connecting and securing components, play a critical role in maintaining structural stability, operational safety, and equipment lifespan. Robust locks and pins for high-impact operations are designed with high-strength materials, enhanced manufacturing processes, and optimized structures. They offer exceptional load-bearing capacity, impact resistance, wear resistance, and anti-loosening properties, ensuring reliable, long-term performance in extreme conditions and preventing operational interruptions or safety hazards caused by component failures.

Robust locks for high-impact operations are designed for superior load capacity, secure locking, and outstanding impact resistance. They are primarily used in heavy equipment doors, hydraulic components, reinforced covers, and connection nodes, providing protection against intense vibrations, material impacts, and environmental exposure. Made from high-strength alloy steel or hardened wear-resistant steel, the locks undergo carburizing, quenching, and tempering treatments to significantly enhance overall strength and toughness. Lock tongues, bodies, and cores are reinforced and thickened to withstand severe vibration and impact, preventing deformation, breakage, or locking failure.
Surfaces are treated with wear-resistant chrome plating, Dacromet, or other anti-corrosion coatings, forming a dense protective layer that shields against dust, moisture, oil, and corrosive agents, ensuring smooth operation even in harsh, high-impact environments. Structural designs include anti-loosening threads, interlocking locking mechanisms, and reinforced clasps, combined with high-strength waterproof and dustproof seals. This prevents accidental loosening due to high-frequency vibration and blocks debris from entering the lock body, reducing internal wear while balancing robustness and durability.

Robust pins are critical load-transmitting and positioning components in high-impact equipment, widely used in booms, dipper arms, linkages, and joint connections. They transfer extreme loads and ensure precise positioning, directly affecting operational accuracy and safety. Pins are made from high-strength wear-resistant alloy steel and are precision forged, heat-treated at high temperatures, and finely ground to enhance density and strength. With precise dimensions and smooth surfaces, they fit tightly with connected components, eliminating gaps that could cause extra friction or wear.
Pins achieve hardness up to HRC50–60, offering excellent shear, bending, and fatigue resistance. They withstand heavy loads and repeated impacts during high-impact operations without significant wear, deformation, or breakage. Surface treatments such as nitriding and wear-resistant coatings further enhance corrosion and wear resistance, extending service life. These robust locks and pins undergo rigorous strength, impact, and wear testing, significantly reducing replacement frequency of vulnerable components, minimizing downtime, lowering maintenance costs, and providing reliable support for efficient, safe, and continuous high-impact operations.

Factory 1:Hanjia village , Baidu industrial zone , Fenghua Area ,Ningbo City,315145 Zhejiang Province ,China
Factory 2:No.2 Chongfeng Rd , Sihong Town,Suqian city 223900 ,Jiangsu Province ,China
Sales Office:Rm1803, Changjiang international Building ,Beilun Area ,Ningbo city 315806, Zhejiang ,Province
Email:tig@tigerlevel.com/sales@tigerlevelmachinery.com
QQ:253460009 604212604
SKYPE:maggiexinfeng
Tel:+86-15857482399 +86-13586913241
Fax:+86-574-56216643
website:www.tigerlevel.com
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